The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.
Open source hub
Open-Source Agents
A hub for open-source agent frameworks, workflow builders, orchestration libraries, and repository-backed AI automation projects.
Built for: Developers, automation teams, platform engineers, technical founders
12
Ranked entries
13
Verified repos
11
Decision pages
99
Top score
Does the framework style match the workflow: visual automation, code-first agents, or RAG agents?
Are releases, issues, license, documentation, and examples healthy enough for production use?
Can tool permissions be sandboxed before connecting sensitive systems?
Ranking
Shortlist the leading entries.
These entries come from the current SkillRank dataset. Scores help discovery; final decisions should use your own workflow tests.
Coding
Claude Code
Anthropic
99
Score
Terminal-native coding agent that plans, edits, and runs tools in your repo.
Coding
Cursor
Cursor
98
Score
Forked-editor experience with inline agents, rules, and multi-model support.
Coding
GitHub Copilot Chat & agent
GitHub
98
Score
Latest Copilot assistants with inline chat, agent mode, and IDE plus GitHub-native agents.
Coding
OpenAI Codex (current)
OpenAI
97
Score
OpenAI’s shipping coding agents and completions behind ChatGPT IDE and Codex tooling.
Coding
Windsurf
Codeium
96
Score
Cascade-style agent IDE optimized for flow and multi-step edits.
Coding
Devin
Cognition
96
Score
Autonomous software engineer agent with dedicated cloud environment.
Coding
Qwen 4 Coder
Alibaba
95
Score
Current code-specialized Qwen line for completion, agents, and on-prem deployments.
Coding
andrej-karpathy-skills
forrestchang
95
Score
A single CLAUDE.md file to improve Claude Code behavior, derived from Andrej Karpathy's observations on LLM coding pitfalls.
Daily signals
What today's briefing says about this category.
Signals are generated from recorded snapshots and verified source metadata. They keep the hub connected to the daily crawler.
claw-code
ultraworkers/claw-code is verified on GitHub with 193,525 stars, 109,955 forks, and last push date 2026-06-08.
ECC
affaan-m/ECC is verified on GitHub with 211,542 stars, 32,459 forks, and last push date 2026-06-09.
JavaGuide
Snailclimb/JavaGuide is verified on GitHub with 156,251 stars, 46,137 forks, and last push date 2026-06-07.
system-prompts-and-models-of-ai-tools
x1xhlol/system-prompts-and-models-of-ai-tools is verified on GitHub with 139,030 stars, 34,546 forks, and last push date 2026-06-09.
open-webui
open-webui/open-webui is verified on GitHub with 140,792 stars, 20,205 forks, and last push date 2026-06-08.
langchain
langchain-ai/langchain is verified on GitHub with 138,882 stars, 22,996 forks, and last push date 2026-06-09.
Verified repositories
Repository-backed projects to inspect.
GitHub metadata is useful for discovery, but production fit still depends on license, docs, security posture, and local maintainability.
The agent that grows with you
FULL Augment Code, Claude Code, Cluely, CodeBuddy, Comet, Cursor, Devin AI, Junie, Kiro, Leap.new, Lovable, Manus, NotionAI, Orchids.app, Perplexity, Poke, Qoder, Replit, Same.dev, Trae, Traycer AI, VSCode Agent, Warp.dev, Windsurf, Xcode, Z.ai Code, Dia & v0. (And other Open Sourced) System Prompts, Internal Tools & AI Models
Claude Code is an agentic coding tool that lives in your terminal, understands your codebase, and helps you code faster by executing routine tasks, explaining complex code, and handling git workflows - all through natural language commands.
Use Garry Tan's exact Claude Code setup: 23 opinionated tools that serve as CEO, Designer, Eng Manager, Release Manager, Doc Engineer, and QA
A cross-platform desktop All-in-One assistant for Claude Code, Codex, OpenCode, OpenClaw, Gemini CLI & Hermes Agent. Only official website: ccswitch.io
Guides
Read the operating playbooks.
Coding Agent Rollout Playbook
How to introduce Claude Code, Cursor, Codex-style agents, Copilot, and open-source coding repos without weakening engineering review.
RAG Evaluation Checklist
A grounded checklist for choosing embedding models, retrieval pipelines, rerankers, and document-agent workflows.
AI Image and Video Model Workflow
How creative teams can compare image and video generators using briefs, brand constraints, rights review, and repeatability.
AI Agent Security Review Checklist
A security review guide for AI agents that can read files, call tools, browse, write code, or automate workflows.
Open-Source AI Agent Frameworks: Evaluation Guide
How to evaluate open-source agent frameworks, orchestration libraries, workflow builders, and repository-backed AI tools.
Multimodal AI Evaluation Guide
How to evaluate models that combine text, images, audio, video, files, screens, and tool use in one workflow.
Compare
Turn options into a decision.
GPT-5.5 vs Claude Opus for Professional Work
A practical comparison of GPT-5.5 and Claude Opus for research, coding, long documents, agentic workflows, and enterprise evaluation.
Claude Code vs Cursor
Compare Claude Code and Cursor for repository work, IDE assistance, refactoring, code review, team rollout, and daily engineering workflows.
OpenAI vs Gemini for Product Teams
How product teams should compare OpenAI and Google Gemini for chat, multimodal apps, workflow automation, enterprise deployment, and cost control.
Sora vs Veo vs Runway for AI Video
Compare AI video generators for storyboards, social ads, cinematic clips, brand workflows, and production review.
Open-Source Agent Frameworks Compared
Compare n8n, AutoGen, CrewAI, Flowise, LlamaIndex, and other open-source agent frameworks by workflow fit and operational risk.
Source boundaries